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13 Cards in this Set
- Front
- Back
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Twisted Pair Cabling |
Balanced pair operation -Two wires w/equal and opposite signals -Transmit+, transmit- / receive+, receive- Twisted cabling keeps a single wire constantly moving away from interference. The opposite signals are compared at the end. Pairs in the same cable have different twist rates. |
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Unshielded Twisted Pair (UTP) Cable Categories |
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Category 3 Cable |
10BASE-T -10 Mbps transmission speed Maximum length of 100 m |
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Category 5 Cable |
100BASE-TX 1000BASE-T -100 Mbps
Maximum length of 100 m Reduces some crosstalk and noise but not confined in foil to avoid interference. |
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Category 5e (enhanced) Cable |
100BASE-TX 1000BASE-T 1Gb
Maximum length of 100m Aims to reduce crosstalk and interference |
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Category 6 Cable |
10GBASE-T 10 Gbps
Maximum length - 55m More tightly wound than Cat5 and have foil wrap or shielding to prevent crosstalk and interference.
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Category 6a (augmented) Cable |
10GBASE-T 10 Gbps
Maximum length - 100m
Twisted tighter than Cat6 Operates at 500mhz allowing for longer lengths Added shielding built into cable structure. |
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Plenum-Rated Cabling |
Plenum - crawl space above or below Traditional cable jacket is made of PVC Fire-rated cable jacket -Fluorinated ethylene polymer (FEP) or low-smoke PVC Plenum-rated cables may not be as flexible as traditional jacket |
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Unshielded Twisted Pair (UTP) |
Unshielded Twisted Pair Cables are more common and consist of two twisted wires that allows for reduction in noise. Unshielded cables do not require a grounding cable and are relatively easy to install, are smaller, lighter, and more flexible. However, they do not allow for the same capabilities as shielded pair cables |
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Shielded Twisted Pair (STP) Cable |
Shielded Twisted Pair Cables are cables that have been twisted together and enclosed in some sort of shield, whether it be foil or mesh. These shields protect the wires from electromagnetic interference. Shielded cables are particularly adept at eliminating most crosstalk. Another key difference between shielded and unshielded is that shielded cables do require a ground. Although they can require a bit more finesse with installation, they provide high rates of data transmission. |
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T568A and T568B Termination |
RJ-45 connector standard 8-pin T567A used for horizontal cabling Cannot terminate one end T568A on one end and T568B on the other. |
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568A and 568B Termination |
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Coaxial Cable |
RG-6 used in TV/digital cable High-speed Internet over cable RG-59 used as patch cables Not designed for long distances |
